Pre-header field doesn't appear under the subject line

[AhsanHDF]

Hello,

I can't seem to find where I can edit the Pre-Header text of the campaign that I'm creating. I'm unable to edit the header as the pre-header field doesn't appear on my screen when creating an email. I have already looked at the above-linked help topic but got no solution so far. Kindly look into this and guide.

[William_A]

Hello @AhsanHDF ,

At this time custom code emails don't have a preheader section to edit or display, only regular email templates do.